Design plots, as defined in this article, show summaries of a response variable given the classes or distinct levels of numeric or string variables presented as influencing factors. Any summarize results can be plotted using statsby as an engine to produce summaries for groups of observations...

The statsby command collects statistics from a command yielding r-class or e-class results across groups of observations and yields a new reduced dataset. statsby is commonly used to graph such data in comparisons of groups; the subsets and total options of statsby are particularly useful in...